kino flo question

Re: kino flo question

Kino's are completely color-calibrated and give off no color cast whatsoever, they render as pretty much "pure" 3200k or 5600k.

You can always add gels to them to make them give off whatever color you're looking for. Or for blue, you can shoot using daylight tubes but set your camera on the tungsten (3200k) preset... or use manual white balance and adjust the color temp menu setting.
 
Re: kino flo question

"Kino's are completely color-calibrated and give off no color cast whatsoever, they render as pretty much "pure" 3200k or 5600k."


More accurately said, the types of tubes (triphosper) that companies like Kino Flo use in their fixtures recreate a full spectrum of light without spikes in the any one area (green area in most cases) of the spectrum as older generation lamps were so prone to. Some of the effect you see in music videos are done in the film transfers (or digital color corrections), and others are done by using lamps that are 5600k with 3200k balanced film and with filtration. Still others are non specialized fluorescent lamps with the green spike not corrected for that film is very sensitive to and still others are adjustments internally in the video camera on location to create the look.

You don't need an expensive fixture to have florescent's look good. Triphsoper tubes are available for purchase on the web and can be used in any home made fluorescent fixture.
 
Re: kino flo question

Thanks for the advice. Where should I order those bulbs? Id like to make a couple fixtures like this.
 
Re: kino flo question

Philips makes such lamps.

Search under some of their model numbers for CRIs of 95+

PHILIPS LAMPS F32T8/TL930
F17T8/TL930
F25T8/TL930

As some examples of 3000k 95 CRI lamps
 
Re: kino flo question

expanding for the sake of general knowledge: in fluroescent or short arc lighting of any kind, the CRI is the important target number. CRI stands for Color Rendering Index, and can be said to be a measurement of the continuity of spectra in reflected light.

Color temperature is only a measurement that can be accurately applied to incandescent lights. Fluroescents and short arc lighting are not true incandescents, and thus hold no similarity to the "black body radiator". Because of this, the color temperature stated for HMI's, CID's, Xenon, Fluroscents and etc are all CORRELATED color temperatures.

When you see a fluroscent light with a correlated color temperature of 3200k, you may think you're safe for matching with tungsten...but that only means that the average light output is similar to 3200k. As this light could actually be made up of some very discontinuous spectra (including the infamous green spike in "cool white" and other tubes), your colors within the scene will prove to be very different from what is expected.

Thus, the CRI number measures the actual effect a given light has on a standardized color target by comparing the reflected colors to a standardized light source.

Using a CRI, we can know how accurate we can expect color to appear under a given light. As walter states above, CRI's of 95 and up are said to be good enough for filmmaking.
 
Re: kino flo question

theres also a link to some high CRI 5600k t8 flouours that output 3000 lumnes in a thread called " 56k flourescents or somthing posted by me quite a while ago" they wer develpoed by the same guy that developed the kino flos. great lights.. i love them.
 
Re: kino flo question

[quote author=GenJerDan link=board=lighting;num=1105300032;start=0#7 date=01/10/05 at 07:54:26]A very long table of fluorescent lamps with model numbers and CRI + other info is here:

http://www.thekrib.com/Lights/fluorescent-table.html

Never thought to look in the fish forums for this stuff.  ;D

Dan[/quote]

Dan, problem with that list is that it doesn't list many of the latest generation flouros that have 91+ CRI's.

For instance:
Philips 17W, T-8 Rapid Start 3000K Color, CRI 95 length 24"
Philips 25W, T-8 Rapid Start 3000K Color, CRI=95 length 36"
 
You must log in or register to reply here.
Back
Top